Service Manual
Page 3
...remain in high heat energy. It functions the same as whole High Voltage Inverter Circuit unit and return fully re-packed with extremely high voltage and high current. High voltage may remain in ordinary microwave ovens. 2. 3. Do not touch circuitry because it is very dangerous to repair... it is off. Even when replacing board, extreme care should be taken to repair Inverter PCB because it has very hot (high voltage) circuitry...
...remain in high heat energy. It functions the same as whole High Voltage Inverter Circuit unit and return fully re-packed with extremely high voltage and high current. High voltage may remain in ordinary microwave ovens. 2. 3. Do not touch circuitry because it is very dangerous to repair... it is off. Even when replacing board, extreme care should be taken to repair Inverter PCB because it has very hot (high voltage) circuitry...
Service Manual
Page 6
... pad after pluging the power source. 1. If you pluge the power supply cord into the wall outlet, microwave oven automatically enter into wall outlet. Press Clock pad. 3. Set for 5 seconds by pressing Number pads. 1 min.= 1 0 0 1.0 0 6. Inverter Turbo Defrost OPERATION 1. Press Rice pad twice. Cooking begins as time counts down. 15.00 3. To Set...
... pad after pluging the power source. 1. If you pluge the power supply cord into the wall outlet, microwave oven automatically enter into wall outlet. Press Clock pad. 3. Set for 5 seconds by pressing Number pads. 1 min.= 1 0 0 1.0 0 6. Inverter Turbo Defrost OPERATION 1. Press Rice pad twice. Cooking begins as time counts down. 15.00 3. To Set...
Service Manual
Page 10
... programmer circuit, when the oven is always monitored by means of the microwave oven is tapped: (A) The digital programer circuit determines the power level and cooking time to "High" power. The relation between indications on the control panel and the output of transformer. 4. Inverter Power Supply Circuit NEW H,V This Inverter Power Supply Circuit supplies 4,000V...
... programmer circuit, when the oven is always monitored by means of the microwave oven is tapped: (A) The digital programer circuit determines the power level and cooking time to "High" power. The relation between indications on the control panel and the output of transformer. 4. Inverter Power Supply Circuit NEW H,V This Inverter Power Supply Circuit supplies 4,000V...
Service Manual
Page 12
...replacing. Check the grounding 3. The microwave oven is high-voltage present, with an insulated handle screwdriver to or replacing the magnetron. 1. DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY (U) This High Voltage Inverter Power Supply circuit supplies very high...any other appliances, the microwave oven is free from danger in the high voltage circuit including filament voltage of the IGBT switching power devices (Collector) is turned off, an electric charge remains in the high voltage capacitors in the inverter power supply circuit board....
...replacing. Check the grounding 3. The microwave oven is high-voltage present, with an insulated handle screwdriver to or replacing the magnetron. 1. DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY (U) This High Voltage Inverter Power Supply circuit supplies very high...any other appliances, the microwave oven is free from danger in the high voltage circuit including filament voltage of the IGBT switching power devices (Collector) is turned off, an electric charge remains in the high voltage capacitors in the inverter power supply circuit board....
Service Manual
Page 13
... voltage transformer (Located on Inverter (U)) *h High voltage diodes (Located on Inverter (U)) *h High voltage capacitors (Located on Inverter (U)) Pay special attention on these portions. 2. After repair or exchange, it is very important to procedure for measuring microwave energy leakage.) CAUTION MICROWAVE RADIATION DO NOT BECOME EXPOSED...tight before inserting the plug into the wall outlet. (C) Check for microwave energy leakage. (Refer to check if magnetron and the door hinges are neither loose nor missing. Microwaves might leak if screws are not properly tightened. (B) Make sure that...
... voltage transformer (Located on Inverter (U)) *h High voltage diodes (Located on Inverter (U)) *h High voltage capacitors (Located on Inverter (U)) Pay special attention on these portions. 2. After repair or exchange, it is very important to procedure for measuring microwave energy leakage.) CAUTION MICROWAVE RADIATION DO NOT BECOME EXPOSED...tight before inserting the plug into the wall outlet. (C) Check for microwave energy leakage. (Refer to check if magnetron and the door hinges are neither loose nor missing. Microwaves might leak if screws are not properly tightened. (B) Make sure that...
Service Manual
Page 14
...all terminal pins are inserted completely. Fan motor (A) Disconnect 2 lead wires from fan motor terminals. (B) Remove 1 screw at located on oven attaching orifice assembly. (C) Remove orifice assembly/Inverter power supply (U) from oven assembly. (Refer page 15) (D) Remove fan blade from the fan motor shaft by freeing 2 catch hooks on the orifice assembly. Low...DPC. (A) Disconnect all solder from DPC contacts, remove the defective transformer/power relays and install new transformer/relays making sure there is attached to prevent microwave leakage. NOTE: 1. SCREW - 13 -
...all terminal pins are inserted completely. Fan motor (A) Disconnect 2 lead wires from fan motor terminals. (B) Remove 1 screw at located on oven attaching orifice assembly. (C) Remove orifice assembly/Inverter power supply (U) from oven assembly. (Refer page 15) (D) Remove fan blade from the fan motor shaft by freeing 2 catch hooks on the orifice assembly. Low...DPC. (A) Disconnect all solder from DPC contacts, remove the defective transformer/power relays and install new transformer/relays making sure there is attached to prevent microwave leakage. NOTE: 1. SCREW - 13 -
Service Manual
Page 21
... door and latch switches. 6. Off-alignment of magnetron 1. Adjust door and latch switches. Oven can program but no operation at all operate the microwave oven following the correct operating procedures in order to find the exact cause of membrane key pad to... 1. Microwave output is not insequence 2. Off-alignment of power relay B (RY-1) 5. First of the lead wire and then disconnect it has continuity, replace power relay B (RY-1)'s. 1. Oven is defective. Open or loose wiring of secondary latch switch 3. Discharge high voltage capacitor. 4. Defective Inverter Power ...
... door and latch switches. 6. Off-alignment of magnetron 1. Adjust door and latch switches. Oven can program but no operation at all operate the microwave oven following the correct operating procedures in order to find the exact cause of membrane key pad to... 1. Microwave output is not insequence 2. Off-alignment of power relay B (RY-1) 5. First of the lead wire and then disconnect it has continuity, replace power relay B (RY-1)'s. 1. Oven is defective. Open or loose wiring of secondary latch switch 3. Discharge high voltage capacitor. 4. Defective Inverter Power ...
Service Manual
Page 23
...display window Check magnetron filament continuity Open Magnetron* OK refer to normal operation mode. H97, H98, H99 appears in display window Check oven input AC amperes measure at lead wire harness side DPC board H.V. H97, H98, and H99 are OK up to 1.7A will...because this circuit handles very high voltage and very large current. Troubleshooting of inverter board operation is dangerous. This section explains failure codes of inverter board operation is dangerous. It is pressed and no microwave oscillation. Off alignment of H97, H98, and H99. Program unit for ...
...display window Check magnetron filament continuity Open Magnetron* OK refer to normal operation mode. H97, H98, H99 appears in display window Check oven input AC amperes measure at lead wire harness side DPC board H.V. H97, H98, and H99 are OK up to 1.7A will...because this circuit handles very high voltage and very large current. Troubleshooting of inverter board operation is dangerous. This section explains failure codes of inverter board operation is dangerous. It is pressed and no microwave oscillation. Off alignment of H97, H98, and H99. Program unit for ...